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Bio-inspired, moisture-powered hybrid carbon nanotube yarn muscles

Journal Article


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Abstract


  • Hygromorph artificial muscles are attractive as self-powered actuators driven by moisture from the

    ambient environment. Previously reported hygromorph muscles have been largely limited to bending

    or torsional motions or as tensile actuators with low work and energy densities. Herein, we developed

    a hybrid yarn artificial muscle with a unique coiled and wrinkled structure, which can be actuated by

    either changing relative humidity or contact with water. The muscle provides a large tensile stroke (up

    to 78%) and a high maximum gravimetric work capacity during contraction (2.17 kJ kg−1), which is over

    50 times that of the same weight human muscle and 5.5 times higher than for the same weight spider

    silk, which is the previous record holder for a moisture driven muscle. We demonstrate an automatic

    ventilation system that is operated by the tensile actuation of the hybrid muscles caused by dew

    condensing on the hybrid yarn. This self-powered humidity-controlled ventilation system could be

    adapted to automatically control the desired relative humidity of an enclosed space.

Authors


  •   Kim, Shi Hyeong (external author)
  •   Kwon, Cheong Hoon (external author)
  •   Park, Karam (external author)
  •   Mun, Tae Jin. (external author)
  •   Lepro, Xavier (external author)
  •   Baughman, Ray H. (external author)
  •   Spinks, Geoff M.
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2016

Citation


  • Kim, S., Kwon, C., Park, K., Mun, T. Jin., Lepro, X., Baughman, R. H., Spinks, G. M. & Kim, S. Jeong. (2016). Bio-inspired, moisture-powered hybrid carbon nanotube yarn muscles. Scientific Reports, 6 23016-1-23016-7.

Scopus Eid


  • 2-s2.0-84961148133

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2829&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1827

Start Page


  • 23016-1

End Page


  • 23016-7

Volume


  • 6

Abstract


  • Hygromorph artificial muscles are attractive as self-powered actuators driven by moisture from the

    ambient environment. Previously reported hygromorph muscles have been largely limited to bending

    or torsional motions or as tensile actuators with low work and energy densities. Herein, we developed

    a hybrid yarn artificial muscle with a unique coiled and wrinkled structure, which can be actuated by

    either changing relative humidity or contact with water. The muscle provides a large tensile stroke (up

    to 78%) and a high maximum gravimetric work capacity during contraction (2.17 kJ kg−1), which is over

    50 times that of the same weight human muscle and 5.5 times higher than for the same weight spider

    silk, which is the previous record holder for a moisture driven muscle. We demonstrate an automatic

    ventilation system that is operated by the tensile actuation of the hybrid muscles caused by dew

    condensing on the hybrid yarn. This self-powered humidity-controlled ventilation system could be

    adapted to automatically control the desired relative humidity of an enclosed space.

Authors


  •   Kim, Shi Hyeong (external author)
  •   Kwon, Cheong Hoon (external author)
  •   Park, Karam (external author)
  •   Mun, Tae Jin. (external author)
  •   Lepro, Xavier (external author)
  •   Baughman, Ray H. (external author)
  •   Spinks, Geoff M.
  •   Kim, Seon Jeong. (external author)

Publication Date


  • 2016

Citation


  • Kim, S., Kwon, C., Park, K., Mun, T. Jin., Lepro, X., Baughman, R. H., Spinks, G. M. & Kim, S. Jeong. (2016). Bio-inspired, moisture-powered hybrid carbon nanotube yarn muscles. Scientific Reports, 6 23016-1-23016-7.

Scopus Eid


  • 2-s2.0-84961148133

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2829&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1827

Start Page


  • 23016-1

End Page


  • 23016-7

Volume


  • 6